In an Entity Relationship Diagram, Rectangles Represent Entities, and Ovals

question 69

True/False

In an entity relationship diagram, rectangles represent entities, and ovals represent relationships.

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Definitions:

Sleep Pattern

The habitual arrangement of the cycles of sleep and wakefulness over a 24-hour period.

Substance Dependence

Diagnosis given in the DSM-IV when a person’s substance use leads to physiological dependence or significant impairment or distress, as manifested by an inability to use the substance in moderation; a decline in social, occupational, or recreational activities; or the spending of large amounts of time obtaining substances or recovering from their effects.

Heroin

An illegal opioid drug derived from morphine, highly addictive and known for its euphoric effects.

Substance Intoxication

Experience of significantly maladaptive behavioral and psychological symptoms due to the effect of a substance on the central nervous system that develops during or shortly after use of the substance.